sterol vs alcohol

sterol and alcohol both are nouns.

Word	Noun	Adjective	Verb	Adverb
sterol	Yes	No	No	No
alcohol	Yes	No	No	No

As nouns, alcohol is a hypernym of sterol; that is, alcohol is a word with a broader meaning than sterol:

sterol: any of a group of natural steroid alcohols derived from plants or animals; they are waxy insoluble substances
alcohol: any of a series of volatile hydroxyl compounds that are made from hydrocarbons by distillation

Other hypernyms of sterol include steroid.

sterol (noun)	alcohol (noun)
any of a group of natural steroid alcohols derived from plants or animals; they are waxy insoluble substances	a liquor or brew containing alcohol as the active agent
	any of a series of volatile hydroxyl compounds that are made from hydrocarbons by distillation